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      petertha replied to the thread Straight 6 Cylinder Engine.
      Nice, Ray. What kind of ignition module are you using to drive through the distributer?
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      petertha replied to the thread Upshur's opposed twin engine.
      We might be saying the same thing with different words and/or I am perhaps not explaining myself properly. I'll try again. My cam timing...
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      petertha replied to the thread Upshur's opposed twin engine.
      Maybe its an optical illusion of Brian's cam picture taken at an angle, but I am having a tough time understanding the timing. Just as a...
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      Guessing this is the website you are referring to & even a nice little animation. I've had their website saved in my Favorites but have...
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      petertha replied to the thread Upshur's opposed twin engine.
      I was going to suggest an RC hobby store. For sure they would have steel 2-56 fasteners & threaded rod but I'm less confident about...
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      What do you use for honing tools in this diameter range?
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      petertha replied to the thread 1/4 scale Anzani Fan Engine.
      Coming along nice! So the two round crankshaft elements come together on a common crankpin for the 3 rods, is that the layout? Is the...
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      petertha replied to the thread Metal 3D print.
      Did you select this particular print house (over other online shops) more for what you deemed to be their technical expertise, end...
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      petertha replied to the thread Metal 3D print.
      @Bazzer is that angled print orientation in post#34 picture something that the 3DP software sets up for its own optimization? What...
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      They might vary by supplier but verbiage I was provided on the unit shown in post #5 said 500 rpm minimum for either the 3000 or 6000...
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      petertha replied to the thread PIP 3 Cylinder Radial.
      Was the bearing threading required for assembly somehow or in order to more easily replace it on day?
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      petertha replied to the thread V4 14.59 CI.
      Also, your crankshaft caught my eye. The counterweight cutouts look the same on both ends, but the right one is thicker. Obviously for a...
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      petertha replied to the thread V4 14.59 CI.
      Very nice! Can you talk a bit about your circulation pump. is it a gear pump design or? Looks like 2 stacked together, one serving each...
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      petertha replied to the thread Diesel nozzles, EDM.
      I read Ben Flemming's EDM book. I could sure envision the advantages of having one in the shop, but its above my pay grade at present...
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      petertha replied to the thread High pressure pump.
      Progressive cavity pumps have been around oil field service for a long time, both surface & downhole. Downhole sand cuts can be ~35%...
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